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- .TH TDERIVE
- 6 "IRIT Version 6.0"
- .SH NAME
- TDERIVE
-
-
-
- TrivarType TDERIVE( TrivarType TV, NumericType Dir )
-
- Returns a vector field trivariate representing the differentiated
- trivariate in the given direction (ROW, COL, or DEPTH). Evaluation of the
- returned trivariate at a given parameter value will return a vector
- representing the partial derivative of TV in Dir at that
- parameter value.
-
- TV = tbezier( list( list( list( ctlpt( E1, 0.1 ),
- ctlpt( E1, 0.2 ) ),
- list( ctlpt( E1, 0.3 ),
- ctlpt( E1, 0.4 ) ) ),
- list( list( ctlpt( E1, 2.4 ),
- ctlpt( E1, 2.2 ) ),
- list( ctlpt( E1, 2.3 ),
- ctlpt( E1, 2.1 ) ) ) ) );
-
- DuTV = TDERIVE( TV, ROW );
- DvTV = TDERIVE( TV, COL );
- DwTV = TDERIVE( TV, DEPTH );
-
- computes the gradiate of a scalar trivariate field, by computing its
- partials with respect to u, v, and w.
-